The impact of spur therapy in dentoalveolar open bite.

Q Medicine Australian Orthodontic Journal Pub Date : 2013-11-01

Philipp Meyer-Marcotty, Janka Kochel, Angelika Stellzig-Eisenhauer

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Abstract

Aim: A longitudinal casecontrol study, designed to analyse the isolated effect of attached palatal spurs in patients displaying a dentoalveolar anterior open bite, is presented.

Methods: Thirty-one patients (mean age of 13.3 years +/- 3.17 years) underwent a standardised treatment protocol with fixed anterior spurs for 8.3 months. Lateral cephalograms and plaster casts were analysed before (T1) and after spur therapy (T2). The data were tested using paired t-tests with a significance level of p < 0.05.

Results: The cephalometric analysis showed significant elongation of the height of the maxillary (mean +1.22 mm) and the mandibular (mean +1.39 mm) alveolar processes, as well as uprighting of the lower anterior teeth. The plaster cast analysis showed an increase in maxillary intermolar width (mean +0.98 mm) and a decrease in intercanine distance (mean -0.96 mm). The mandibular anterior width and dental arch length reduced. Overall, spur therapy resulted in a significant increase in overjet and overbite.

Conclusion: The use of spurs produced a resolution of the open bite in all patients. Therefore, spurs could be considered an effective mechanism for the management of anterior open bite in selected adolescent patients.

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牙槽牙开咬的刺治疗效果。

目的:提出了一项纵向病例对照研究，旨在分析附着腭热刺在牙槽牙槽前开咬患者中的孤立效果。方法:31例患者(平均年龄13.3岁+/- 3.17岁)采用固定前突的标准化治疗方案8.3个月。分析治疗前(T1)和治疗后(T2)的侧位头颅造影和石膏模型。数据采用配对t检验，显著性水平p < 0.05。结果:头颅测量显示上颌牙槽突高度明显延长(平均+1.22 mm)，下颌骨牙槽突高度明显延长(平均+1.39 mm)，下前牙直立。石膏模型分析显示上颌磨牙间宽度增加(平均+0.98 mm)，犬牙间距离减少(平均-0.96 mm)。下颌前牙宽度和牙弓长度减小。总的来说，骨刺治疗导致复喷和复咬的显著增加。结论:热刺的使用使所有患者的开放性咬合得到了解决。因此，热刺可以被认为是治疗青少年患者前牙开咬的有效机制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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